| article html file updated | 6 February 2020 09:32 CET | Update | https://www.mdpi.com/1420-3049/19/6/6975 |
| article html file updated | 20 September 2019 08:41 CEST | Update | - |
| article html file updated | 7 May 2019 14:00 CEST | Update | - |
| article html file updated | 21 March 2019 17:43 CET | Update | - |
| article html file updated | 12 September 2018 07:43 CEST | Update | - |
| article html file updated | 20 August 2015 08:22 CEST | Update | - |
| article html file updated | 1 July 2014 05:20 CEST | Original file | - |
| article xml file uploaded | 1 July 2014 05:20 CEST | Original file | https://www.mdpi.com/1420-3049/19/6/6975/xml |
| article pdf uploaded. | 27 May 2014 11:09 CEST | Version of Record | https://www.mdpi.com/1420-3049/19/6/6975/pdf |
